Finding the Third Proportional to 354,974.50 and 772,145

Step by Step Solution

1. Step 1: Write the proportion equation
   354,974.50 : 772,145 = 772,145 : x
2. Step 2: Convert to fraction form
   354,974.50/772,145 = 772,145/x
3. Step 3: Cross multiply
   354,974.50x = 772,145 × 772,145
4. Step 4: Simplify right side
   354,974.50x = 596,207,901,025
5. Step 5: Solve for x
   x = 596,207,901,025/354,974.50
6. Step 6: Final answer
   x = 1,679,579.52